Loan / EMI

Loan / EMI Calculator is a free, browser-based tool that works out your Equated Monthly Installment - the fixed amount you repay every month on a loan. You give it three inputs: the principal (how much you borrow), the annual interest rate, and the tenure (how long you take to repay). It returns the monthly EMI, the total interest you will pay, and the total amount payable.

EMI is the standard way home loans, car loans, and personal loans are structured. Each installment is the same size, but its makeup changes over time: early payments are mostly interest, while later ones are mostly principal. This calculator uses the standard reducing-balance formula that banks use, so the numbers you see match what a lender would quote.

Everything runs on this page. Enter your figures and the results update instantly - no sign-up, no spreadsheet, and no data sent anywhere.

Working out an EMI by hand means applying a formula with exponents and a monthly interest rate - easy to get wrong, and tedious to repeat for every "what if". An online calculator gives you the exact figure in a second and lets you compare options side by side: a shorter tenure, a lower rate, or a bigger down payment.

The common worry with financial tools online is privacy. Many sites send your loan details to a server, and loan amounts and income can be sensitive. Dev Nexus is different - the entire calculation happens locally in your browser using plain arithmetic. Nothing you type is uploaded, logged, or stored, so you can model your real numbers safely, and it keeps working even offline.

Seeing the total interest matters just as much as the EMI. A loan that looks affordable per month can cost a great deal more overall once you stretch the tenure. A good calculator makes that trade-off visible before you sign.

The tool uses the standard reducing-balance EMI formula:

EMI = P * r * (1 + r)^n / ((1 + r)^n - 1)

Here P is the principal, n is the number of monthly installments, and r is the monthly interest rate - the annual rate divided by undefined and by undefined. For example, an annual rate of undefined% becomes r = 0.01 per month.

Suppose you borrow undefined,P = 500000 at undefined% for undefined years. That is P = 500000, r = 0.10 / 12 = 0.008333, and n = 60. Plugging in gives an EMI of about undefined,undefined per month. Over undefined months you repay roughly undefined,undefined in total, of which about undefined,undefined is interest.

Because the balance reduces each month, the interest portion of every EMI shrinks while the principal portion grows. That is why the tool can also show an amortization view - the running split of principal and interest across the whole tenure.

Home loans. Model a mortgage over undefined, undefined, or undefined years and see how tenure changes both the EMI and the eye-watering total interest on a large principal.

Car and vehicle loans. Check whether a undefined-year or undefined-year term fits your monthly budget, and how much a larger down payment trims the installment.

Personal and education loans. Compare offers from different lenders quickly - even a one-point difference in rate can shift the total cost noticeably.

Budget planning. Before you apply, confirm the EMI sits comfortably within your income. Lenders often cap total EMIs at a share of your monthly earnings, so knowing the number in advance strengthens your position.

Prepayment decisions. By adjusting the principal or tenure, you can estimate how paying down a lump sum early reduces your remaining interest.

Enter the net principal - the price minus your down payment - not the full asset value, or your EMI will read high.

Use the exact rate your lender quotes, and confirm whether it is fixed or floating. A floating rate can change over the life of the loan, so treat the EMI as a snapshot at today's rate.

Don't judge a loan by the monthly figure alone. Always look at the total interest: stretching the tenure lowers the EMI but can add substantially to what you pay overall. Aim for the shortest tenure whose EMI you can comfortably afford.

Remember the calculator shows the pure principal-and-interest EMI. Real loans may add processing fees, insurance, or taxes, so budget a little above the number shown. To sanity-check a rate or work out how much of your income an EMI takes, pair this with the Percentage Calculator.